Improved drain and water-pipe



N. PETERS, PHOTO-LITHOGRAPHER, WASHINGTON, D C.

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GEORGE H. 'ljl'ltlh'V ANI) JOHN P. CULVER, 0F JERSEY CITY, NEW

' JERSEY.

Letters Patent No. 102,623, dated 'Mwy 3, 1870.

IMPRovED DRAIN AND WATER-PIPE.

1 '0 all whom 'it may concern Beit known that we, GEORGE H. lrrconie and Jorn. P. OULVER, of Jersey City, in the county of Hudson and State of New Jersey, have invented certain Improvements in Hydraulic-Cement Drain or Water-Pipe, of which the following is a specification.

The nature and object of our. invention consists in producing a more durable hydraulic-cement drain or water-pipe. iron, ashereinafter described.

'\Ve are aware that iron has been previously used in combination with hydraulic cement, and we consequently disclaim any arrangement heretofore used in the manufacture of vthe same; but we are notaware that perforated iron has ever been used for this purpose. Te take iron of any desired thickness, and perihrate it from either side, thereby leaving a rough surface, and, at the saine time, a better surface for the hydraulic cement to adhere to, leaving those skilled in the art of manufacture Vto adopt either principle inits construction which may be deemed proper, as there will be no material difference how the hydraulic cement is applied, as it will have the same lresults whether lined from inside with hydraulic cement first, or outside, or whether the two are applied at once, as the hydraulic cement will combine through the perforations in such aimanner as will sustain each coating To accomplish this, we use perforated of the hydraulic cement, and thereby make a strong,-

durable drain or water-pipe.

Figure l is an end elevation.

.lsigure 2 is a longitudinal elevation.

The same letters refer to similar' parts.

A represents the iron case or pipe, aa. a being the perforations, and Y B, the outside coat oi' hydraulicvcement.

G represents the inside coating of the same.

Havin g now described our invention, we wish it to be understood that wc ldo not claim cylindrical perforated pipe provided with metallic bosses, and lined within and covered without by cement, as exhibited in the Witnesses:

NICHOLAS G. VREELAND, FRED. A. NIENSTADT.' 

